首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
What is the main idea of the passage? The passage suggests that oxygen remained in the atmosphere because ______.
What is the main idea of the passage? The passage suggests that oxygen remained in the atmosphere because ______.
admin
2005-01-30
102
问题
What is the main idea of the passage?
The passage suggests that oxygen remained in the atmosphere because ______.
选项
A、it was caused by outgassing
B、it was heavier than hydrogen
C、hydrogen became trapped in limestone
D、rays from the sun created equal amounts of hydrogen and oxygen ______.
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/RByO777K
0
托福(TOEFL)
相关试题推荐
ReadingPassage1hasnineparagraphslabelledA-I.Whichparagraphcontainsthefollowinginformation?Writethecorrectletter
ReadingPassage1hasnineparagraphslabelledA-I.Whichparagraphcontainsthefollowinginformation?Writethecorrectletter
Answerthequestionsbelow.ChooseNOMORETHANTHREEWORDSAND/ORANUMBERfromthepassageforeachanswer.WhatwastheYapa
Theuniversityhasproduceda______toinformstudentsaboutthedifferentaccommodationoptionsavailable.SperrinHalls
Whatwasthestudentsurprisedtodiscoverhehadalotof?Onwhatbasisshouldthestudentpreparehisschedules?
He/Shethinksanoverheadprojectorisusuallyneeded.He/Shementionsthatjokescanbeusefulincontext.
SeverallargeearthquakesweretriggeredbytheeruptionofPinatuboon15thJune1991becauseofthe(36)ofthesummit.The
HowdidCharlesfeelabouthavingtochangeroutes?
(Fewsubstances)lockless(alikethan)coalanddiamonds,yetboth(arefashioned)(fromsame)elementalcarbon.
"PhysicalandChemicalPropertiesandChanges"→Sugar,water,andaluminumaredifferentsubstances.Eachsubstancehasspe
随机试题
水井压裂后,应在3个月内完成分层注水工作。()
Whiskeyandsoda_____alwaysmyfavouritedrink.
有关端坐呼吸的描述正确的是
病原体侵袭人体后,不出现或仅出现不明显的临床表现,但通过免疫学检查可发现对入侵病原体产生了特异性免疫反应,应称为
建设工程施工投标的程序中,投标计算后的工作应该是()。
“备案号”栏:()。“用途”栏:()。
如果出现流动性危机,商业银行采取的下列措施正确的有()。
企业变革的外部驱动因素是()。
设A是3阶实对称矩阵,特征值是0,1,2.如果α1=(1,2,1)T与α2=(1,-1,1)T分别是λ=0与λ=1的特征向量,则λ=2的特征向量是________.
Thedebateaboutproblemdrinkingandhowtostopitnowadayscentresmostontheworking-classyoung.Theyare【M1】______highly
最新回复
(
0
)